Electromagnetic valve.



L1. LITLE, JR.

ELECTROMAGNETIG VALVE.

APPLICATION FILED APR.27,1915.

- Pnten'ted Oct. 3, 1916.

`UNITED sTATEs NPATENT oEEIoE. I

THOMAS JAMES LITLE, JR., OF WOODBURY, NEW JERSEY, ASSIGNOR T WELSBACH LIGHT COMPANY, OF GLOUCESTER, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ELECTROMAGNETIC VALVE.

Specification of Letters Patent.

Application led Apr127, 1915. Serial No. 24,374.

To all whom t mag/'concern Be it known that I, THOMAS J. LITLE, Jr., a citizen of the United States, residing at Woodbury, in the county of Gloucester and '5 State of New Jersey, have invented a new and useful Improvement in Electromagnetic Valves, of which the following is a full, clear, and eXact description, reference being had to the accompanying drawings, forming part of this specification, in which:

Figure 1 is a plan view of a valve embodying my invention. Fig. 2 is a vertical section of the same; Fig. 3 is a detail vlew of the armature member and valve, and'Flg. 4 is a section on the line IV-IV of Fig. 1.

These figures show the parts on a larger scale than is ordinarily employed in practice.

My invention has relation to electro-magnetically operated gas valves; and 1s designed to provide a simple, compact and efiicient form of valve of this type.

A further object of my invention 1s to provide a valve of this type havlng ycombined therewith a filter box for the pilot light port, and also preferably, a dlrt catcher in the main gas passage.

Referring to the accompanying drawlngs, in which I have shown the preferred embodiment of my invention, and which will now be described, the numeral 2 designates a fitting member having a gas inlet connection 3 at one end and a gas outlet connection 4 at the opposite end. The `inlet connection is in v the form of an internally threaded socket, While the outlet connection is shown as being in the form of an externally threaded plug.

5 designates the main gas port or passage through the fitting and which has a seat at 6 forthe valve 7. This valve is carried by a reciprocating armature member 8, shdingly seated within the core 9 of the electromagnets 10. The core,9 is shown as having an annular recess in each end portion to receive the magnet windings, as forming a magnet of the iron-clad type. One end of the core is externally threaded, as shown at 11, to screw into an opening at one end of the member 2, and the other end is similarly threaded,l as shown at 12, to receive a removable cap 13. The valve 8 preferably has a ball and socket connection 14 with the end of the armature so as to enable the valve to readily seat itself.- The threaded core also has the top projection 15 which'carries the binding posts 16 for the electric connections. The portion 15 is also shown as having a seat for a screw 17 adapted to bind against the fitting 2 and thus prevent the magnet from turning. When the valve is used for outdoor work, the screw 17 may also serve to secure in place a guard or shield 18 (shown in dotted lines in Fig. 2) and which protects the binding posts from the weather. The armature plunger is preferably recessed, as indicated at 19, to seat a friction spring 20 which, by contact with the interior wall of the magnet-core, will eXert suii.-

cient friction to prevent a rebound of the armature when the valve is carried against its seat.

Leading outwardly from the port or passage 5 at the inlet side'of the valve 7 is the pilot Asupply port 21. This portI communicates .with the passage of a nipple 22 which is screwed into the'fitting 2 at one end, and upon which is screwed a fitting 23. This fitting has a filterchamber 24 which is filled with suitable ltering material, such as indicated at 25. .26 designates the outlet port leading from this chamber to the pilot light connection and which has the screw valve 27.

Seated within the socket portion 3 of the fitting 2 is a dome shaped member 28 having inlet perforati ns 29. Thef gas in entering the port or passage 5 from the inlet .is compelled to change its direction of flow and enter the opening 29. This serves to cause a large part ofthe dust or dirt carried .by the gas to be deposited in the bottom of the socket instead of being carried into the valve.

My invention provides a very simple, compact and efficient form of valve adapted for either indoor or outdoor use. The various parts and fittings can be simply made and assembled, and are united in such a manner that they pairs, etc.

I do not desire to limit myself to the eX- act construction. and arrangement of the parts which I have shown and described, as these may be changed in many respects within the spirit and scope of the appended claims.

I claim:

" 1. An electromagnetic gas valve, compris-v ing a fitting having a main gas passage therethrough and formed, with means for can be readily taken apart for rethe connection therewith of an inlet pipe at one end and ofan outlet pipe at the other end, an opening in the side of the tting member, an electromagnet secured in said opening and having an armature portion eX- tending into the gas passage, and a valve carried by the armature and arranged to control said passage, substantially as described.

2. An electromagnetic gas valve, comprising a fitting member having a main gas passage extending therethrough and formed with an opening at one side communicating with said passage, an iron-clad magnet having its casing secured in said opening, said magnet .having an armature portion extending within said passage, and a valve carried by the armature portion and arranged to control said passage, substantially as described.

3. An electromagnetic gas valve, comprising a fitting member having a gas passage therethrough, an electromagnet having an armature, and a valve member having a balland-socket connection with the armature and having a seat in said passage, substantially as described.

4. An electromagnetic gas valveI having an actuating magnet, a plunger extending through said magnet, said plunger having a recess, a friction spring seated in said recess and engaging the core wall of the magnet, and an armature and valve carried by the plunger, substantially as described.

5. A gas valve comprising a casing, an

inlet port for the gas, and an outlet from said casing, a valve for controlling the communications between the'inlet and outlet, an electromagnet having a core seated within an opening in said casing, an armature within said casing and arranged to be actuated by the magnet, actuating connections between the armature and the valve, said valve actuating members being entirely within the casing and {the magnet core, and means for preventing gas from passing through the core of the magnet, substantially as described.

6. A gas valve having a casing, there being anginlet to said casing and an outlet therefrom, a port communicating with the inlet and outlet, a valve for opening and closing said port, there being an opening in said casing, an electromagnet having a core seated'in said opening, said core having an opening, an armature member slidably seated within said core and connected to the valve, said armature being arranged to shift the valve, and means for preventing gas from passing out through the opening in the armature core, substantially as described.

In testimony whereof, I have hereunto set my hand.

THOMAS JAMES LITLE, JR.

Witnesses:

ARCHIBALD M. RrroHrE J. H. JOHNSON. 

